component
DTC123YUA
Public Made by Adomby adom
Yangzhou Yangjie Elec Tech Digital Transistors, SOT-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownDTC123YUA
Yangzhou Yangjie Elec Tech · Digital Transistors · SOT-323
DTC123YUA from Yangzhou Yangjie Elec Tech, in a SOT-323. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | IN | input | Input of the built-in bias resistor R1 (2.2 kΩ typ, 1.54-2.86 kΩ) feeding the NPN base; input voltage rating is -5 to +12 V. |
| 2 | GND | power_in | Ground, connected to the emitter and to R2 of the digital transistor. |
| 3 | OUT | output | Output at the NPN collector, rated for 100 mA output current and 50 V supply voltage. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| Package | SOT-323 |
| Category | Transistors/Thyristors |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input resistance | R1 | 1.54 | 2.2 | 2.86 | kΩ | 2 | |
| Resistance ratio | R2/R1 | 3.7 | 4.7 | 5.7 | 2 | ||
| Supply voltage | VCC | 50 | V | 1 | |||
| Input voltage | VIN | -5 | 12 | V | 1 | ||
| Output current | IO | 100 | mA | 1 | |||
| Power dissipation | PD | 200 | mW | 1 | |||
| Junction temperature | Tj | 150 | ℃ | 1 | |||
| Storage temperature | TSTG | -55 | 150 | ℃ | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | ● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |
CAD (KiCad official)
- Symbol:
DTC123YUA - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files:
dtc123yua-etched.step/dtc123yua-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dtc123yua.step/dtc123yua.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Yangzhou Yangjie Elec Tech datasheet (4 pp, sha256
34f33252bb0b2349, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).